1159 papers
Nuclear theory sits at the fascinating intersection of particle physics and the forces that hold our universe together. This field explores how protons and neutrons bind inside atomic nuclei, seeking to understand the fundamental interactions that govern matter at its most dense and energetic levels. While the mathematics involved can be incredibly complex, the core questions are deeply human: how does the universe function at its smallest scales, and what happens when we push matter to its limits?
At Gist.Science, we make these cutting-edge discoveries accessible by processing every new preprint published in this category on arXiv. Our team transforms dense academic manuscripts into clear, plain-language summaries alongside detailed technical overviews, ensuring that both experts and curious readers can grasp the latest breakthroughs without getting lost in the jargon. Below are the latest papers in nuclear theory, distilled and ready for you to explore.
This paper proposes a method to "unshadow" the constituent quark number scaling of harmonic flow by disentangling spectator shadowing effects from the particle emitting source, thereby offering a refined framework to interpret recent STAR measurements and future CBM data regarding the Quark-Gluon Plasma phase transition.
This paper presents predictions for the scattering observables and femtoscopic correlation functions of the and systems within two theoretical frameworks constrained by heavy-flavor resonances, revealing that while strong-interaction models exhibit significant differences, the inclusion of repulsive Coulomb effects largely suppresses the sensitivity of correlation functions to these underlying strong dynamics.
This study demonstrates that the charge-weak form factor difference in Ca and Zr is highly sensitive to the isovector spin-orbit interaction due to specific shell structures, whereas Pb and Ni remain insensitive, thereby guiding a strategic approach to use parity-violating electron scattering on these distinct nuclei to separately constrain the isovector spin-orbit strength and the symmetry energy slope.
This paper extends the theoretical and phenomenological analysis of recent NA61/SHINE collaboration findings by establishing the conceptual and analytical foundations of isospin symmetry and proving that, under charge-symmetry invariant initial conditions, the mean multiplicities of charged and neutral kaons should be equal, thereby highlighting the significance of the observed violation.
This study demonstrates that multiparticle azimuthal correlations in central Ru+Ru and Zr+Zr collisions at 200 GeV are sensitive probes of nuclear deformation and neutron skin thickness, offering a robust method to disentangle nuclear structure effects with minimal dependence on shear viscosity.
This paper presents a theoretical framework for elastic neutrino-nucleon scattering that incorporates electromagnetic interactions of massive Dirac neutrinos through matrix-defined form factors and a spin-flavor density matrix to analyze the effects of charge radii, magnetic moments, and spin polarization in experimental contexts.
This paper proposes using normalized symmetric cumulants and Pearson coefficients derived from ultracentral Ne+Ne collisions at the LHC, combined with Brink model calculations and hydrodynamic simulations, to distinguish between competing Ne cluster configurations (5 versus +O) and probe nuclear structure transitions.
This paper introduces a theoretical framework of coupled instantons in a four-well potential to model the simultaneous tunneling of multiple degrees of freedom, utilizing perturbative and diagrammatic methods to calculate energy splittings and tunneling amplitudes, with a specific application to the tunneling of a composite particle in one dimension.
This study presents the first *ab initio* calculation of the nuclear Schiff moment for the F isotope using the no-core shell model, which, when combined with quantum chemistry calculations and experimental data on HfF, establishes the first experimental bound on this moment and its associated pion-nucleon-nucleon coupling constants.
This paper reviews theoretical proposals and experimental searches for various abnormal nuclear systems, ranging from dense exotic states like pion and scalar condensates to dilute clustered matter, while also exploring potential stabilization mechanisms and unexplained observational anomalies.